53C720 Development Board Bill of Materials              7/2/91
		Differential Mode Population Option

Label           Description                    Quantity        MFR

UX              53C720-208PQFP                      1       NCR

U1              Lattice 26CV12-15, 28-Pin PLCC      1       Lattice

U2-U4           Lattice 20V8A-15, 28-Pin PLCC       3       Lattice

U6-U7           28-pin DIP socket                   2       Digikey
							    A409

U8-U9           24-pin DIP socket                   2       Digikey
							    A408

U10-U11 74ALS646 8-bit Xcvr w/Reg,24-pin DW pkg     2      TI

U12-U15 74ALS245 8-bit Xcvr, 20-pin DW package      4       TI

U16      74ALS244 8-bit buffer, 20-pin DW pkg       1       TI

U17      74LS74 Dual D-Flops, 14-pin D package      1       TI

U18      LT1086CT Voltage Regulator, Plastic Pkg    1       Linear Tech.

U19      74LS14  Schmitt Trigger Inverter, D pkg    1       TI

U20-U26, DS36954 Differential-Pair Xcvr-PL pkg      7       National

C1-C26, 0.01 uF Decoupling Caps (SMT)               29      Various
C34-C36                                                         

C27-C29 10 uF Electrolytic or Tantalum              3       Various

C30       4.7 uF Tantalum Capacitor                 1       Various

C31-C32 1.0 uF Tantalum Capacitor                   2       Various

C33       22 uF Tantalum Capacitor                  1       Various

R1        121 Ohm (1%) 1/8W, SMT                    1       Mallory
							    CR1206F1210

R2        154 Ohm (1%) 1/8W, SMT                    1       Mallory
							    CR1206F1540

R3        330 Ohm (5%) 1/8W, SMT                    2       Various

R4        220 Ohm (5%) 1/8W, SMT                    1       Various

R5-R6,R8-R9   1K Ohm (5%) 1/8W, SMT                 4       Various

R7           680 Ohm (5%) 1/8W, SMT                 1       Various

RP1          1K Ohm x 9 (5%) pull-ups, SIP-10       1       Digikey
							  770-101-1K

RP6,         680 Ohm X 9 (5%) pull-ups, SIP-10      3       Digikey
RP14-RP15                                                   770-101-680

RP7-RP13      330/150/330 Ohm Network, SIP-14       7       Sprague
							    435CK506

LED1-LED2     Light Emitting Diodes, SMT            2       Digi-Key P503
							    Panasonic LN1261C

SW1-SW2 Momentary Contact push-button switch         2       Digikey
		Normally OFF                                 P9954
							     Panasonic
							     EVQ-QS205K

W1-W6   3-position header, 0.100 " spacing		9	

D1-D3           Schottkey Diode, 1N5817                 3       Motorola

J4              68-pin high-density, female             1       AMP
							       749075-7                                                                

F1              1.5 amp fuse, socketed, 2AG             1       Littlefuse
								22501.5 2AG

		Fuse Holder                             1       Littlefuse
XTAL1   50 MHz TTL Oscillator                           1       Fox F3000

       10-position SIP sockets, 0.100" spacing 	3	Digi-Key
								  A208

		Shunts (Jumpers), 0.100" spacing		6

		Mounting Bracket                        1       Olson
								T1B1-40A

		Screws for Mounting Bracket, and        3
		voltage regulator 4-40 1/4 inch